<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based photo gallery                                    |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2011 Piwigo Team                  http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify  |
// | it under the terms of the GNU General Public License as published by  |
// | the Free Software Foundation                                          |
// |                                                                       |
// | This program is distributed in the hope that it will be useful, but   |
// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
// | General Public License for more details.                              |
// |                                                                       |
// | You should have received a copy of the GNU General Public License     |
// | along with this program; if not, write to the Free Software           |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+

/**
 * returns $code if php syntax is correct
 * else return false
 *
 * @param string php code
 */
function eval_syntax($code)
{
  $code = str_replace(array('<?php', '?>'), '', $code);
  if (function_exists('token_get_all'))
  {
    $b = 0;
    foreach (token_get_all($code) as $token)
    {
      if ('{' == $token) ++$b;
      else if ('}' == $token) --$b;
    }
    if ($b) return false;
    else
    {
      ob_start();
      $eval = eval('if(0){' . $code . '}');
      ob_end_clean();
      if ($eval === false) return false;
    }
  }
  return '<?php' . $code . '?>';
}

/**
 * returns true or false if $str is bool
  * returns $str if $str is integer
 * else "$str"
 *
 * @param string
 */
function editarea_quote($value)
{
  switch (gettype($value))
  {
    case "boolean":
      return $value ? 'true' : 'false';
    case "integer":
      return $value;
    default:
      return '"'.$value.'"';
  }
}

/**
 * returns bak file for restore
 * @param string
 */
function get_bak_file($file)
{
  if (get_extension($file) == 'php')
  {
    return substr_replace($file, '.bak', strrpos($file , '.'), 0);
  }
  else
  {
    return $file . '.bak';
  }
}

/**
 * returns dirs and subdirs
 * retun array
 * @param string
 */
function get_rec_dirs($path='')
{
  $options = array();
  if (is_dir($path))
  {
    $fh = opendir($path);
    while ($file = readdir($fh))
    {
      $pathfile = $path . '/' . $file;
      if ($file != '.' and $file != '..' and $file != '.svn' and is_dir($pathfile))
      {
        $options[$pathfile] = str_replace(array('./', '/'), array('', ' / '), $pathfile);
        $options = array_merge($options, get_rec_dirs($pathfile));
      }
    }
    closedir($fh);
  }
  return $options;
}

?>